Improvement in lubeicating-boxes



I CHARLES ANDREWS, OE PROVIDENCE, RHODE ISLAND.

Letters Patient No. 106,762, dated August 30, A1870.

IM-PROVEMENT IN LUBRICATING-BXES.

The Schedule referred to in these Letters Patent and making pa'rt; of the same To allwho-m it may concern Be it known that I, CHARLES ANDREWS, of Providence, in the county of Providence and State of Rhode Island, have invented au Improvement in Selflubricating Boxes; and do hereby declare that the following is a i'ull and exact description, reference being had to the accompanying drawings making a part of this specilication. A t

The nature of my invention consists in preventing the spread of oil upon the shaft beyond the box by means oi' suitable notches or inclined surfaces and openings so arranged as to scrape the oil from the shaft and return it to the lower reservoir; also, in leaching the oil as it passes from the side. -tanks to the shaft.

To enablethose skilledinl the art to make and use my invention, l will proceed to describe its construction and operation.

Figure lis a top View of the box, and

Figure 2, an inside view oi` the'cap.

rBhe blue dotted lines denote the shaft. u

Immediately below the box is a reservoir containing a full supply of oil, which is to be raised to the shaft by means of au endless chain passing over the shaft and through the holes a a. connecting with the 'leser-voir, a groove, b, being provided in the cap so as to allow the chainto turn with the shaft.

A portion of the oil brought up by the chain will ow over into the side tanks A A, and ii'om thence it is leached through the wicks or packing c cc c upon the shaft.` v

'lhe arrangement of the wicks or leaches c c c c dilers from anything heretofore employed from the fact'that the head ol' oil in the side tanks is always can reach the shaft.

d d are openings for the ret-urn of oil to the lower reservoir, these openings being arranged at the bot tom of the grooves e @,which serve to catch the oil as it passes outward along the shaft.

The Acorresponding grooves e' e' upon the cap are made wider vthan t-he grooves e e ot' the box, and a notch, j, or hole, f', made near the edge of the groove, which will operate to scrape the surplus oil from the shaft and. return it to the lower reservoir.

It' there should any oil pass the grooves e e, I re.- turn it to the groove by means of inclined notches or nicks, g g g, or by an equivalent inclined surface pressing against the shaft.

What l claim s my invention, and desire to secure by Letters Patent,is

A side tank,'A, supplied with oil from a reservoir, in 'combination with a wick orleach, c, operating to puril'y the oil as it passes to the shaft, substantially as described.

Also, the notch f, or hole f', in combination with lthe groove e, in the box, and the wider groove c in he cup, substan'tiallyas and for the purpose speci- Also, the inclined nick or notch g, or an equivalent inclined surface, operating to scrape or guide the oil back into the groove e, substantially as described.4

CHARLES ANDREWS. Witnesses: y

SOCRATES SoHonFIELD, J ons CALDWELL. 

